<?php

$instance_homepage_url = mysql_query("SELECT instance_homepage_url FROM environment_settings");

echo "<p>\n";
echo "<a href=' . $instance_homepage_url . '>Home</a>\n";
echo "<a href=''>Register</a>\n";
echo "<a href=''>Log in</a>\n";
echo "<a href=''>About</a>\n";
echo "</p>\n";

?>